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Expired Canadian patentCanada

Liposomal vaccines comprising dilipopeptides for modulating t1 and t2 immune responses

CA 2441809 C · Owner: Biomira, Inc. · Inventors: Longenecker, Michael B.; Koganty, Rao R.; Krantz, Mark J.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The present invention provides liposomal vaccines containing immunogenic dilipopeptides that , are capable of modulating the humoral and cellular immune responses in vivo.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed March 27, 2002 and granted July 22, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 27, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 27, 2002
GrantedJuly 22, 2014
Term endedMarch 27, 2022
Patent numberCA 2441809 C
Classification (IPC)C07K14/47 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedMarch 27, 2002Patent grantedJuly 22, 2014Term endedMarch 27, 2022

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.